Questions about the GNU General Public License

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2answers
19 views

Licensing subcomponents

Say I produce system X, which contains some components (A, B and C, say) which are specific to X, but ripe for generalisation. Let's say X is licensed with a viral open source license ([AL]?GPL). If ...
2
votes
3answers
60 views

How do I deal with imported modules in GPL?

I wish to release a non-commercial python application under GPL3 in both source and (PyInstaller) executable form. I'm struggling to find a consistent answer to the problem of imported modules. Can I ...
3
votes
2answers
196 views

can a closed source commercial software make system(3) calls to GPL applications (not libraries)?

The closed source commercial software (CSCS), will just make system(3) calls to GPL applications. The user machine will run CSCS and it will call these GPL applications, in realtime, in the very same ...
0
votes
2answers
88 views

Porting an algorithm implementation licensed under GNU GPL v3

I'm working on a JavaScript port of a red-black tree implementation in Java from the book Algorithms 4th Edition, by Sedgewick and Wayne. I believe that my JavaScript port qualifies as a derivative ...
1
vote
1answer
38 views

The term “aggregate” in GPL3

What does this part of GPL3 mean in simpler or more readable terms? If I decide to enhance a GPL3 Program in which some snippets of the codes I could add are generic (may it be on a separate file or ...
1
vote
2answers
61 views

GPL license for software and online service comparison

I have two questions that are linked : 1) Can someone sell a fork of an open-source software under GPL without distributing the source? Example: Can I modify a little bit GIMP, repackage it under ...
1
vote
1answer
58 views

Open-source licenses and modifications

I see in the GPL license FAQ : Does the GPL require that source code of modified versions be posted to the public? (#GPLRequireSourcePostedPublic) The GPL does not require you to release ...
9
votes
2answers
731 views

How can a company sell licenses for GPLed software without violating rights of others [duplicate]

There are tons of questions like "Can I use GPLed code X in my commercial project?" but I found nothing which answers my question. I take ExtJS as an example, but actually you can any commercial / ...
-2
votes
1answer
104 views

What rights do I have if a closed source non-distributed in-home application was stolen? [closed]

I was always wondering about this, because I have been recently reading about many leaks and stolen programs on certain news sites: If a program (running on a server for example, serving http ...
0
votes
1answer
47 views

ClamAV Database Usage Policy? [closed]

What about if I sell computers with embedded home-made antivirus using ClamAV database as its main database or as optional database? Of course the software isn't open-source/GPL. Is it allowed? Many ...
-2
votes
2answers
77 views

Do I have to distribute my code if I use GPL based jquery controls in my commercial application

I have been thinking about using 3rd party GPL based jQuery controls in our in-house ASP.NET project. As far as the 3rd party license is concerned, I think I can use any jQuery controls in my ...
0
votes
1answer
43 views

The usage of server under GNU GPL

I have found an open sourced server that is licensed under GNU GPL. We would like to use that server at our client's hardware as a part of our solution for him (we provide our own software but we need ...
2
votes
1answer
56 views

Do I need to include a copy of the GPL / LGPL to every copy of my program?

Is it necessary to include the GPL / LGPL license text to every distributed copy of my program? Or can I just put a link in the About-dialog?
0
votes
3answers
111 views

GPL Copyright notice in fork of dual licenced software when copyright of original has been sold subsequently

Since 2009 we are developing a fork of a CMS that was started in 1999 as commercial project, but released 2009 additionally under GPL. The original programmer sold copyright, code, name and website in ...
1
vote
0answers
65 views

Is conversion from C/C++ to Verilog/VHDL for FPGA a derivative work? [duplicate]

Say I have a C/C++ software licensed under GPL that gets converted into hardware design. By this conversion I mean that the exact functionality of the original software is being programmed into an ...
2
votes
2answers
138 views

Can software with a restrictive open source license (GPL,AGPL) be used as part of a tool chain in a commercial software package? [duplicate]

If we use a nice library like TetGen, generate a simple application-wrapper that simplifies our needs and publish it as open source, can we use it inside some Pipe/Chain of applications used in our ...
4
votes
4answers
239 views

Do I have to make source code open, if I use GPLv2 licensed software to derive data

I'm working on a calendar project, on my own. In this project I've to use Swiss Ephemeris. It is licensed under GPLv2 and commercial. With commercial version of license, developers entitled to ...
-3
votes
1answer
55 views

Java Licenses, GPL, GNU Questions

I would like to ask a few questions about software licenses, with regards to a (Java) program I am making. I am very very new to licenses, so please bear with me. 1. If I produce a Java program using ...
88
votes
6answers
5k views

Ship of Theseus applied to GPL - Can I relicense my program if I replace all of the derivative parts?

I translated a GPLv2 C program to Python, but found it was hard to extend as designed and rewrote significant portions of it. The program is now structurally completely different, but there are ...
2
votes
1answer
99 views

Applications using GPL code and run-time libraries of proprietary IDEs

The GPL is described as a 'highly viral' license (if an application contains code which is licensed under GPL, distribution requires open sourcing of the whole application). Do I understand correctly ...
0
votes
2answers
53 views

GPL - No version mentioned [closed]

This software is allowed to use under GPL or you need to obtain Commercial License to use it in non-GPL project. The above is mentioned on an open source project. It does not mention GPLv3 or ...
0
votes
2answers
99 views

Shipping unmodified open source applications with closed source apps

I am creating a closed source application whose task is to launch other open source applications (similar to start menu of windows). So i have included various opensource applications under licences ...
3
votes
2answers
82 views

Do I have to include the license text when I GPL a web page?

I want to GPL some standalone web pages containing my Javascript/D3.js source code. How to use GNU licenses for your own software says that to distribute source code under the GPL, I should "include ...
0
votes
1answer
75 views

Components having GPL and MIT/BSD license but released under MIT license

If a component “A” is under MIT License ,but it contains some GPL files, according to GPL the whole code should be GPL. But the component is released under MIT. Is it possible? If yes/no, on what ...
1
vote
2answers
201 views

Is my understanding of the license for JQuery.xmleditor correct?

Please correct me if I'm wrong, but I recently found myself in a pretty confusing situation and now I am unsure how to continue. I found the jQuery.xmleditor plugin from the UNC libraries and thought ...
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votes
1answer
99 views

Who is the copyright owner of a contribution (commit) to a GPL-licensed project? [duplicate]

Suppose, that Alice started a GPL-licensed project. Later, Bob married Alice, joined the project and made a 50% contribution to it. Then they broke up, Alice sued Bob and by court decision took his ...
1
vote
1answer
54 views

Using a zLib like icensed library which has dependencies on LGPL or GPL libs; what license am I able to release my project under?

If I use an Open Source library which is released under a zLib like license, but it has dependencies on libraries that are using LGPL or GPL; what license am I able to release my project under? If I ...
5
votes
2answers
329 views

GPL- How much source must be released?

Suppose I have a GPL v2-licensed library that is of interest to a closed-source project (e.g. Wolfram Alpha). If some of my code were used in Wolfram Alpha, or a product that interfaces with Wolfram ...
1
vote
2answers
126 views

Does distributing GPLd assets with a non-GPL application violate the license?

I'm trying to figure out if I can distribute the Faenza icons, which are GPL licensed, with some MIT-licensed software I'm working on. What does the GPL license really mean when applied to a ...
1
vote
2answers
44 views

“Used with permission” reusable in a GPLv2 derivative work?

The LICENSE file of a GPLv2 application I am modifying contains a statement saying that certain resources used in the application were "used with permission" from 3rd parties - such as textual ...
0
votes
1answer
63 views

Does an Rcpp-dependent package require a GPL license?

I'm writing a commercial package that uses R (GPL) for its computation. The GPL FAQ clearly states that GPLed programming language interpreters do not impose licensing restrictions on the "program" ...
0
votes
2answers
64 views

sell applications that run only on a GPL v2 Server [closed]

I have been testing Pentaho BI server community edition, and after reading their licensing terms I found out that the community edition is under GPLv2. As you may know the server is intended to host ...
1
vote
3answers
89 views

Do you think asking to sign contributor license agreement for a open source project creates a resistance for contributors? [closed]

I am working on a open-source project which is backed by an organization. Organization pays a team to make this open-source project. This project will be licensed with GPLv3. We are debating on ...
0
votes
1answer
394 views

FFmpeg: Can I replace libx264 with OpenH264 in order to go LGPL?

I have some video processing to run and FFmpeg already contains much of what I need. However my videos are all compressed with H.264 video codec and libx264 is a GPL part of FFmpeg. On the other hand, ...
0
votes
1answer
36 views

Using a binary from a project that violates GPL

There is an open source project which uses GPLv2. It had numerous releases that complied with GPL in the past where source code was available for given binaries. The newest source code is about 18 ...
0
votes
1answer
114 views

Does it make sense to license source code snippets by CC-BY(-SA) [closed]

If I want to put random source code snippets in a publicly accessible git repository, does it make sense to license by CC-BY(-SA) given that CC-BY licenses are generally not recommended for software? ...
3
votes
1answer
88 views

GPL and non GPL software common installer

From my vague understanding of this subject I assumed that if I make an installer for my program and it contains a GPL library my code would have to fall under GPL. However, I noticed yesterday when ...
0
votes
1answer
95 views

Distributing GPL licensed software that optionally links to non-GPL licensed libraries

I can find lots of information regarding the restrictions imposed on linking GPL licensed libraries from non-GPL licensed software. However, I'd like to do the opposite - I'd like to distribute some ...
-2
votes
2answers
110 views

Copying and Selling Apache Licensed Software? [closed]

Questions in bold: I've read the Apache Software License 2.0... What I gather is that all a person needs to do when redistributing the licensed software is include their name in all the parts they've ...
3
votes
1answer
30 views

Licencing GNU GPlv3 - sofware provides a service - not distributed

I have a couple questions with regard to the GNU GPLv3 license. My application is closed-source and I do not intend to actually release it to the public. However, it does generate commercial items. ...
-2
votes
3answers
154 views

Trying to understand how MySQL license applies to code I wrote

I have an ERP, coded with Java and the database in MYSQL Community edition. When I was going to sell it to a client he asked me for the sources to my application (with the belief that it is GPLed). I ...
3
votes
2answers
135 views

How restrictive are the GPL's linking restrictions really?

To my basic understanding, software licenses only apply when redistributing software. Even if I am wrong about this in general, the GPL states that you need not agree to the GPL in order to receive or ...
4
votes
1answer
90 views

What precisely do I/my company need to do “make available/publish” source code changes and satisfy GPL/LGPL

This seems like a basic question, but I have not found a definitive source. I need to modify the source for an LGPL application for my employer to plug a security hole. Longer term we will upgrade to ...
0
votes
1answer
76 views

Linking a GPL executable from proprietary .bat script [duplicate]

Licensing question - am I allowed to use a GPL binary executable (.exe) in my copyrighted .bat script? Namely I want to use FART command line tool (find & replace text in files) in an install ...
1
vote
1answer
59 views

Source code modification and GPLv3 compatibility

Assume that the source file A contains the following license notice: "This code is Copyright 1234 by XYZ. It may be freely redistributed in its entirety provided that this copyright notice is not ...
3
votes
2answers
80 views

GPL+FE license also applies to fonts used for the UI of a software? [closed]

The GPL font exception allows the font to be embedded within a digital "document" file without requiring the "document" itself to also be shared with GPL. Now I wonder, what is considered a ...
2
votes
2answers
156 views

Use of AGPL software on server with closed-source software

I need to use some software under the AGPL to populate a database with some data. This software has a web interface, which I shall disable. Then the data will be used "at arms length" with ...
0
votes
1answer
139 views

Using GPL library in our software [duplicate]

Currently we're starting to work on a project for which we're going to need image processing libraries. The problem is some of the libraries are GPL licensed. I'm reading through GPL licence and ...
-1
votes
1answer
56 views

Why GPL was made so that it requires open application code yet not open pipe of compiled applications?

Say we have a GPL library (CGAL for example). We have a big tasks chain like pipes modeling and testing. We would love to use library for our indoors application yet we must open sources... so we make ...
0
votes
2answers
103 views

Is the GPL dangerous to the organisation in terms of exposure of its intellectual property?

GNU General Public License is a ‘Viral License”. If an organisation is using Linux and MySQL which come under this license, is it dangerous to the organisation in terms of exposure of its ...